EP 3617239 B1 20231129 - PROPYLENE-BUTENE COPOLYMER AND PREPARATION METHOD THEREFOR
Title (en)
PROPYLENE-BUTENE COPOLYMER AND PREPARATION METHOD THEREFOR
Title (de)
PROPYLEN-BUTEN-COPOLYMER UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
COPOLYMÈRE DE PROPYLÈNE-BUTÈNE ET PROCÉDÉ DE PRÉPARATION DE CELUI-CI
Publication
Application
Priority
- KR 20170087999 A 20170711
- KR 2018007873 W 20180711
Abstract (en)
[origin: EP3617239A1] The present invention relates to a propylene-butene copolymer resin composition used for non-woven fabric, a method of preparing the same, and spunbond non-woven fabric manufactured using the composition, and particularly, by optimizing a content of 1-buttene in a metallocene polypropylene resin composition to 0.5 to 5.0 wt%, while simultaneously optimizing both of a melt index and a residual stress ratio of the resin composition, has a merit of having a reduced modulus together with a high conversion rate to manufacture non-woven fabric which is softer than existing products while maintaining high strength.
IPC 8 full level
C08F 210/06 (2006.01); C08F 2/38 (2006.01); C08F 4/646 (2006.01); C08F 4/659 (2006.01); C08F 4/6592 (2006.01); C08F 210/08 (2006.01); D04H 1/541 (2012.01)
CPC (source: EP KR US)
C08F 2/38 (2013.01 - KR); C08F 4/6465 (2013.01 - KR); C08F 4/65908 (2013.01 - KR); C08F 4/65912 (2013.01 - KR); C08F 4/65916 (2013.01 - KR); C08F 4/65927 (2013.01 - KR US); C08F 210/06 (2013.01 - EP KR US); C08F 210/08 (2013.01 - KR US); C08L 23/20 (2013.01 - KR US); D04H 1/541 (2013.01 - KR); C08F 4/65908 (2013.01 - EP); C08F 4/65912 (2013.01 - EP); C08F 4/65916 (2013.01 - EP); C08F 2420/10 (2021.01 - EP); C08F 2500/12 (2013.01 - KR)
C-Set (source: EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3617239 A1 20200304; EP 3617239 A4 20200520; EP 3617239 B1 20231129; CN 110650981 A 20200103; CN 110650981 B 20220715; JP 2020519747 A 20200702; JP 6871426 B2 20210512; KR 102238159 B1 20210408; KR 20190006929 A 20190121; US 11198779 B2 20211214; US 2020207968 A1 20200702; WO 2019013554 A1 20190117
DOCDB simple family (application)
EP 18832078 A 20180711; CN 201880033447 A 20180711; JP 2019563583 A 20180711; KR 2018007873 W 20180711; KR 20180080699 A 20180711; US 201816616168 A 20180711